Is your enhancement related to a problem? Please describe.
To meet all use cases:

• a triangle symbol is needed in addition to the existing x and dot symbol.
• The “dashed line” option should also be available for limit values that are valid for a specific period.

Describe the solution you'd like

• Add the option to select a triangle
• Add the option to make the line dashed for limits connected to measures, when they are a single filter